CN111234330A - High-elasticity and high-stability rubber - Google Patents
High-elasticity and high-stability rubber Download PDFInfo
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- CN111234330A CN111234330A CN202010254202.4A CN202010254202A CN111234330A CN 111234330 A CN111234330 A CN 111234330A CN 202010254202 A CN202010254202 A CN 202010254202A CN 111234330 A CN111234330 A CN 111234330A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention discloses a rubber with high elasticity and high stability, which belongs to the technical field of rubber production and is prepared from the following substances in parts by weight: 90-100 parts of natural rubber, 15-20 parts of synthetic rubber, 5-10 parts of SEBS (styrene-butadiene-styrene) rubber, 8-12 parts of ABS (acrylonitrile-butadiene-styrene) resin, 4-8 parts of vulcanizing agent, 3-6 parts of epoxidized soybean oil, 2-4 parts of anti-aging agent, 1-3 parts of accelerator, 10-14 parts of reinforcing white carbon black, 0.5-1 part of paraffin, 1-2 parts of stabilizer, 2-3 parts of magnesium oxide and 1-2 parts of zinc oxide. The rubber of the invention has strong use stability, high elasticity and excellent strength quality.
Description
Technical Field
The invention belongs to the technical field of rubber production, and particularly relates to a rubber with high elasticity and high stability.
Background
The rubber is a high-elasticity polymer material with reversible deformation, is rich in elasticity at room temperature, can generate large deformation under the action of small external force, and can recover the original shape after the external force is removed. Rubber is a completely amorphous polymer with a low glass transition temperature (Tg) and a molecular weight often very high, greater than several hundred thousand. With the continuous popularization of rubber products, rubber is used in many aspects, but the existing rubber products in the market always have some limited performances, such as poor elasticity, strength and toughness which do not reach the use standards, weak use stability, easy cracking and other adverse phenomena.
The application numbers are: 201310112065.0 discloses a super light high elasticity rubber sole material and its preparation method, wherein the natural rubber is used as main body, and super light white carbon black is added to enhance the elasticity and strength of the rubber; the application numbers are: 201410290288.0 discloses an environment-friendly high-elasticity rubber material, wherein nitrile rubber is used as a main body, and white carbon black, thermoplastic elastomer and other components are added to enhance the elasticity, stability and the like of the rubber; the white carbon black is a common filler component in rubber preparation, the addition of the white carbon black in actual production can enhance the use quality of rubber to a certain extent, but the white carbon black is added to the rubber, the comprehensive performance of the rubber is still more general, and the use quality of the white carbon black is not well exerted, so that the rubber cannot meet the performance requirements of people which are increasingly promoted.
Disclosure of Invention
The invention provides a rubber with high elasticity and high stability aiming at the problems brought forward by the background technology, and the rubber has the qualities of strong elasticity, high stability and the like.
The invention is realized by the following technical scheme:
a rubber with high elasticity and high stability is prepared from the following substances in parts by weight:
90-100 parts of natural rubber, 15-20 parts of synthetic rubber, 5-10 parts of SEBS (styrene-butadiene-styrene) rubber, 8-12 parts of ABS (acrylonitrile-butadiene-styrene) resin, 4-8 parts of vulcanizing agent, 3-6 parts of epoxidized soybean oil, 2-4 parts of anti-aging agent, 1-3 parts of accelerator, 10-14 parts of reinforcing white carbon black, 0.5-1 part of paraffin, 1-2 parts of stabilizer, 2-3 parts of magnesium oxide and 1-2 parts of zinc oxide.
Further, the vulcanizing agent is any one of sulfur powder, zinc oxide and tert-butyl phenol formaldehyde resin; the anti-aging agent is any one of an anti-aging agent MB, an anti-aging agent DNP and an anti-aging agent NBC.
Further, the accelerator is any one of a CBS accelerator, a TBBS accelerator and a DZ accelerator; the stabilizer is a zinc barium stabilizer.
Further, the preparation method of the reinforced white carbon black specifically comprises the following steps:
a. uniformly blending carbon black, a quaternary ammonium salt cationic surfactant and deionized water to obtain a mixed solution A;
b. b, uniformly blending the mixed solution A obtained in the step a with a sodium hydroxide solution, tetraethoxysilane and ethanol to obtain a mixed solution B;
c. b, performing constant-temperature water bath heating treatment on the mixed liquid B obtained in the step B for 35-45 min, continuously performing ultrasonic treatment in the period, and taking out the mixed liquid B after the ultrasonic treatment is completed to obtain a mixed liquid C;
d. c, centrifugally washing the mixed liquid C obtained in the step C, and drying for 5-7 hours to obtain a mixture D;
e. and D, blending and reacting the mixture D obtained in the step D with polyether, concentrated sulfuric acid and a silane coupling agent for 1-1.5 hours, washing with deionized water, and drying.
Further, the corresponding weight ratio of the carbon black, the quaternary ammonium salt cationic surfactant and the deionized water in the step a is 1: 0.8-1: 40-45.
Further, the volume ratio of the mixed solution A, the sodium hydroxide solution, the ethyl orthosilicate and the ethanol in the step b is 5: 25-30: 0.5-1: 2-3; the concentration of the sodium hydroxide solution is 0.01-0.02 mol/L.
Further, the temperature of the constant-temperature water bath heating treatment in the step c is controlled to be 60-65 ℃; and controlling the frequency of the ultrasonic wave to be 400-500 kHz during ultrasonic treatment.
Further, the centrifugal washing in the step d is specifically that firstly, centrifugal treatment is carried out at the rotating speed of 4000-4500 rpm, and then washing is carried out by alternately washing with ethanol and deionized water once; and the temperature for controlling drying during drying treatment is 100-105 ℃.
Further, the mixture D, polyether, concentrated sulfuric acid and a silane coupling agent in the step e are blended at a weight ratio of 5-6: 1-1.5: 0.2-0.4: 0.1 to 0.3; the reaction temperature is controlled to be 75-80 ℃ during the reaction treatment; and during drying treatment, the drying temperature is controlled to be 85-90 ℃.
Further, the polyether is polyethylene glycol monomethyl ether.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a reinforced white carbon black component, which is prepared by processing, modifying and reinforcing common white carbon black, improves the filling and using effects, and can obviously improve the properties of rubber such as strength and the like while enhancing the elasticity of the rubber; finally, under the combined action of all the components, the rubber has strong use stability, high elasticity, excellent strength and quality, strong market competitiveness and high use value.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A rubber with high elasticity and high stability is prepared from the following substances in parts by weight:
90-100 parts of natural rubber, 15-20 parts of synthetic rubber, 5-10 parts of SEBS (styrene-butadiene-styrene) rubber, 8-12 parts of ABS (acrylonitrile-butadiene-styrene) resin, 4-8 parts of vulcanizing agent, 3-6 parts of epoxidized soybean oil, 2-4 parts of anti-aging agent, 1-3 parts of accelerator, 10-14 parts of reinforcing white carbon black, 0.5-1 part of paraffin, 1-2 parts of stabilizer, 2-3 parts of magnesium oxide and 1-2 parts of zinc oxide; the vulcanizing agent is any one of sulfur powder, zinc oxide and tert-butyl phenol formaldehyde resin; the anti-aging agent is any one of an anti-aging agent MB, an anti-aging agent DNP and an anti-aging agent NBC; the accelerant is any one of CBS accelerant, TBBS accelerant and DZ accelerant; the stabilizer is a zinc barium stabilizer.
The preparation method of the reinforced white carbon black comprises the following specific steps:
a. uniformly blending carbon black, a quaternary ammonium salt cationic surfactant and deionized water to obtain a mixed solution A;
b. b, uniformly blending the mixed solution A obtained in the step a with a sodium hydroxide solution, tetraethoxysilane and ethanol to obtain a mixed solution B;
c. b, performing constant-temperature water bath heating treatment on the mixed liquid B obtained in the step B for 35-45 min, continuously performing ultrasonic treatment in the period, and taking out the mixed liquid B after the ultrasonic treatment is completed to obtain a mixed liquid C;
d. c, centrifugally washing the mixed liquid C obtained in the step C, and drying for 5-7 hours to obtain a mixture D;
e. and D, blending and reacting the mixture D obtained in the step D with polyether, concentrated sulfuric acid and a silane coupling agent for 1-1.5 hours, washing with deionized water, and drying.
The corresponding weight ratio of the carbon black, the quaternary ammonium salt cationic surfactant and the deionized water in the step a is 1: 0.8-1: 40-45.
And b, mixing the mixed solution A, the sodium hydroxide solution, the ethyl orthosilicate and the ethanol in the step b in a corresponding volume ratio of 5: 25-30: 0.5-1: 2-3; the concentration of the sodium hydroxide solution is 0.01-0.02 mol/L.
The temperature of the constant-temperature water bath heating treatment in the step c is controlled to be 60-65 ℃; and controlling the frequency of the ultrasonic wave to be 400-500 kHz during ultrasonic treatment.
The step d of centrifugal washing specifically comprises the steps of firstly carrying out centrifugal treatment at the rotating speed of 4000-4500 rpm, and then washing by alternately washing with ethanol and deionized water once; and the temperature for controlling drying during drying treatment is 100-105 ℃.
When the mixture D, the polyethylene glycol monomethyl ether, the concentrated sulfuric acid and the silane coupling agent in the step e are blended, the corresponding weight ratio is 5-6: 1-1.5: 0.2-0.4: 0.1 to 0.3; the reaction temperature is controlled to be 75-80 ℃ during the reaction treatment; and during drying treatment, the drying temperature is controlled to be 85-90 ℃.
Example 1
A rubber with high elasticity and high stability is prepared from the following substances in parts by weight:
90 parts of natural rubber, 15 parts of synthetic rubber, 5 parts of SEBS (styrene-butadiene-styrene) rubber, 8 parts of ABS (acrylonitrile-butadiene-styrene) resin, 4 parts of vulcanizing agent, 3 parts of epoxidized soybean oil, 2 parts of anti-aging agent, 1 part of accelerator, 10 parts of enhanced white carbon black, 0.5 part of paraffin, 1 part of stabilizer, 2 parts of magnesium oxide and 1 part of zinc oxide; the vulcanizing agent is sulfur powder; the anti-aging agent is an anti-aging agent MB; the accelerator is a CBS accelerator; the stabilizer is a zinc barium stabilizer.
The preparation method of the reinforced white carbon black comprises the following specific steps:
a. uniformly blending carbon black, a quaternary ammonium salt cationic surfactant and deionized water to obtain a mixed solution A;
b. b, uniformly blending the mixed solution A obtained in the step a with a sodium hydroxide solution, tetraethoxysilane and ethanol to obtain a mixed solution B;
c. b, performing constant-temperature water bath heating treatment on the mixed liquor B obtained in the step B for 35min, continuously performing ultrasonic treatment in the period, and taking out the mixed liquor C after the ultrasonic treatment is completed;
d. c, centrifugally washing the mixed liquor C obtained in the step C, and drying for 5 hours to obtain a mixture D;
e. and D, blending and reacting the mixture D obtained in the step D with polyether, concentrated sulfuric acid and a silane coupling agent for 1 hour, washing with deionized water, and drying.
And c, mixing the carbon black, the quaternary ammonium salt cationic surfactant and the deionized water together in the step a according to the weight ratio of 1:0.8: 40.
And b, when the mixed solution A, the sodium hydroxide solution, the ethyl orthosilicate and the ethanol in the step b are mixed, the corresponding volume ratio is 5:25: 0.5: 2; the concentration of the sodium hydroxide solution is 0.01 mol/L.
The temperature of the constant-temperature water bath heating treatment in the step c is controlled to be 60 ℃; and the frequency of the ultrasonic wave is controlled to be 400kHz during ultrasonic treatment.
The step d of centrifugal washing specifically comprises the steps of firstly carrying out centrifugal treatment at the rotating speed of 4000 revolutions per minute, and then washing by alternately washing with ethanol and deionized water once; the temperature for drying is controlled to be 100 ℃ during the drying treatment.
And e, when the mixture D, the polyethylene glycol monomethyl ether, the concentrated sulfuric acid and the silane coupling agent are blended, the corresponding weight ratio is 5: 1: 0.2: 0.1; the reaction temperature is controlled to be 75 ℃ during the reaction treatment; the drying temperature is controlled to be 85 ℃ during the drying treatment.
Example 2
A rubber with high elasticity and high stability is prepared from the following substances in parts by weight:
90 parts of natural rubber, 18 parts of synthetic rubber, 5 parts of SEBS (styrene-butadiene-styrene) rubber, 8 parts of ABS (acrylonitrile-butadiene-styrene) resin, 6 parts of vulcanizing agent, 5 parts of epoxidized soybean oil, 2 parts of anti-aging agent, 1 part of accelerator, 10 parts of enhanced white carbon black, 0.5 part of paraffin, 1 part of stabilizer, 2.5 parts of magnesium oxide and 1 part of zinc oxide; the vulcanizing agent is sulfur powder; the anti-aging agent is an anti-aging agent MB; the accelerator is a CBS accelerator; the stabilizer is a zinc barium stabilizer.
The preparation method of the reinforced white carbon black comprises the following specific steps:
a. uniformly blending carbon black, a quaternary ammonium salt cationic surfactant and deionized water to obtain a mixed solution A;
b. b, uniformly blending the mixed solution A obtained in the step a with a sodium hydroxide solution, tetraethoxysilane and ethanol to obtain a mixed solution B;
c. b, performing constant-temperature water bath heating treatment on the mixed liquor B obtained in the step B for 35min, continuously performing ultrasonic treatment in the period, and taking out the mixed liquor C after the ultrasonic treatment is completed;
d. c, centrifugally washing the mixed liquor C obtained in the step C, and drying for 6 hours to obtain a mixture D;
e. and D, blending and reacting the mixture D obtained in the step D with polyether, concentrated sulfuric acid and a silane coupling agent for 1.3 hours, washing with deionized water, and drying.
And c, mixing the carbon black, the quaternary ammonium salt cationic surfactant and the deionized water together in the step a according to the weight ratio of 1:0.8: 43.
And b, when the mixed solution A, the sodium hydroxide solution, the ethyl orthosilicate and the ethanol in the step b are mixed, the corresponding volume ratio is 5:28: 0.7: 2.5; the concentration of the sodium hydroxide solution is 0.01 mol/L.
The temperature of the constant-temperature water bath heating treatment in the step c is controlled to be 60 ℃; and the frequency of the ultrasonic wave is controlled to be 400kHz during ultrasonic treatment.
The centrifugal washing in the step d is specifically that firstly, centrifugal treatment is carried out at the rotating speed of 4200 r/min, and then washing is carried out by alternately washing with ethanol and deionized water once; the temperature for drying is controlled to be 100 ℃ during the drying treatment.
And e, when the mixture D, the polyethylene glycol monomethyl ether, the concentrated sulfuric acid and the silane coupling agent are blended, the corresponding weight ratio is 5: 1: 0.2: 0.1; the reaction temperature is controlled to be 75 ℃ during the reaction treatment; the drying temperature is controlled to be 85 ℃ during the drying treatment.
Example 3
A rubber with high elasticity and high stability is prepared from the following substances in parts by weight:
95 parts of natural rubber, 18 parts of synthetic rubber, 9 parts of SEBS (styrene-butadiene-styrene) rubber, 10 parts of ABS (acrylonitrile-butadiene-styrene) resin, 6 parts of vulcanizing agent, 5 parts of epoxidized soybean oil, 3 parts of anti-aging agent, 2 parts of accelerator, 12 parts of reinforcing white carbon black, 0.8 part of paraffin, 1.5 parts of stabilizer, 2.5 parts of magnesium oxide and 1.6 parts of zinc oxide; the vulcanizing agent is zinc oxide; the anti-aging agent is DNP; the accelerant is a TBBS accelerant; the stabilizer is a zinc barium stabilizer.
The preparation method of the reinforced white carbon black comprises the following specific steps:
a. uniformly blending carbon black, a quaternary ammonium salt cationic surfactant and deionized water to obtain a mixed solution A;
b. b, uniformly blending the mixed solution A obtained in the step a with a sodium hydroxide solution, tetraethoxysilane and ethanol to obtain a mixed solution B;
c. b, heating the mixed liquor B obtained in the step B in a constant-temperature water bath for 40min, continuously performing ultrasonic treatment in the period, and taking out the mixed liquor C after the ultrasonic treatment is completed;
d. c, centrifugally washing the mixed liquor C obtained in the step C, and drying for 6 hours to obtain a mixture D;
e. and D, blending and reacting the mixture D obtained in the step D with polyether, concentrated sulfuric acid and a silane coupling agent for 1.3 hours, washing with deionized water, and drying.
And c, mixing the carbon black, the quaternary ammonium salt cationic surfactant and the deionized water together in the step a according to the weight ratio of 1:0.9: 42.
And b, when the mixed solution A, the sodium hydroxide solution, the ethyl orthosilicate and the ethanol in the step b are mixed, the corresponding volume ratio is 5:27: 0.8: 2.6; the concentration of the sodium hydroxide solution is 0.015 mol/L.
The temperature of the constant-temperature water bath heating treatment in the step c is controlled to be 63 ℃; the ultrasonic frequency is controlled to be 460kHz during ultrasonic treatment.
The step d of centrifugal washing specifically comprises the steps of firstly carrying out centrifugal treatment at the rotating speed of 4500 rpm, and then washing by alternately washing with ethanol and deionized water once; the drying temperature is controlled to be 103 ℃ during the drying treatment.
When the mixture D, the polyethylene glycol monomethyl ether, the concentrated sulfuric acid and the silane coupling agent are blended in the step e, the corresponding weight ratio is 5.6: 1.3: 0.3: 0.2; the reaction temperature is controlled to be 78 ℃ during the reaction treatment; the drying temperature is controlled to be 88 ℃ during the drying treatment.
Example 4
A rubber with high elasticity and high stability is prepared from the following substances in parts by weight:
100 parts of natural rubber, 20 parts of synthetic rubber, 10 parts of SEBS (styrene-butadiene-styrene) rubber, 12 parts of ABS (acrylonitrile-butadiene-styrene) resin, 8 parts of vulcanizing agent, 6 parts of epoxidized soybean oil, 4 parts of anti-aging agent, 3 parts of accelerator, 14 parts of enhanced white carbon black, 1 part of paraffin, 2 parts of stabilizer, 3 parts of magnesium oxide and 2 parts of zinc oxide; the vulcanizing agent is tert-butyl phenol formaldehyde resin; the anti-aging agent is NBC; the accelerant is a DZ accelerant; the stabilizer is a zinc barium stabilizer.
The preparation method of the reinforced white carbon black comprises the following specific steps:
a. uniformly blending carbon black, a quaternary ammonium salt cationic surfactant and deionized water to obtain a mixed solution A;
b. b, uniformly blending the mixed solution A obtained in the step a with a sodium hydroxide solution, tetraethoxysilane and ethanol to obtain a mixed solution B;
c. b, heating the mixed liquor B obtained in the step B in a constant-temperature water bath for 45min, continuously performing ultrasonic treatment in the period, and taking out the mixed liquor C after the ultrasonic treatment is completed;
d. c, centrifugally washing the mixed liquor C obtained in the step C, and drying for 7 hours to obtain a mixture D;
e. and D, blending and reacting the mixture D obtained in the step D with polyether, concentrated sulfuric acid and a silane coupling agent for 1.5 hours, washing with deionized water, and drying.
And c, mixing the carbon black, the quaternary ammonium salt cationic surfactant and the deionized water together in the step a according to the weight ratio of 1: 1: 45.
And b, when the mixed solution A, the sodium hydroxide solution, the ethyl orthosilicate and the ethanol in the step b are mixed, the volume ratio of the mixed solution A to the ethyl orthosilicate is 5:30: 1: 3; the concentration of the sodium hydroxide solution is 0.02 mol/L.
The temperature of the constant-temperature water bath heating treatment in the step c is controlled to be 65 ℃; and the frequency of the ultrasonic wave is controlled to be 500kHz during ultrasonic treatment.
The step d of centrifugal washing specifically comprises the steps of firstly carrying out centrifugal treatment at the rotating speed of 4500 rpm, and then washing by alternately washing with ethanol and deionized water once; the drying temperature is controlled to be 105 ℃ during the drying treatment.
The mixture D, the polyethylene glycol monomethyl ether, the concentrated sulfuric acid and the silane coupling agent in the step e are blended according to the weight ratio of 6: 1.5: 0.4: 0.3; the reaction temperature is controlled to be 80 ℃ during the reaction treatment; the drying temperature is controlled to be 90 ℃ during the drying treatment.
In order to compare the effects of the invention, the rubber prepared in the above examples 1 to 4 was subjected to a performance test, and the specific comparative data are shown in the following table 1:
TABLE 1
| Tensile Strength (MPa) | Elongation at Break (%) | Compression set (%) | Rebound resilience (%) | |
| Example 1 | 27.5 | 453 | 18.2 | 67 |
| Example 2 | 28.3 | 460 | 17.8 | 68 |
| Example 3 | 29.2 | 475 | 17.0 | 73 |
| Example 4 | 28.7 | 467 | 17.3 | 71 |
Note: the tensile strength described in Table 1 above was tested with reference to GB/T528-1998; the elongation at break is detected by reference to GB/T528-1998; the compression set rate is detected by referring to GB/T1683-84; the resilience is detected by referring to GB/T1681-1991.
Comparative example 1
A rubber with high elasticity and high stability is prepared from the following substances in parts by weight:
90 parts of natural rubber, 15 parts of synthetic rubber, 5 parts of SEBS (styrene-butadiene-styrene) rubber, 8 parts of ABS (acrylonitrile-butadiene-styrene) resin, 4 parts of vulcanizing agent, 3 parts of epoxidized soybean oil, 2 parts of anti-aging agent, 1 part of accelerator, 10 parts of enhanced white carbon black, 0.5 part of paraffin, 1 part of stabilizer, 2 parts of magnesium oxide and 1 part of zinc oxide; the vulcanizing agent is sulfur powder; the anti-aging agent is an anti-aging agent MB; the accelerator is a CBS accelerator; the stabilizer is a zinc barium stabilizer.
The preparation method of the reinforced white carbon black comprises the following specific steps:
a. uniformly blending carbon black, a quaternary ammonium salt cationic surfactant and deionized water to obtain a mixed solution A;
b. b, uniformly blending the mixed solution A obtained in the step a with a sodium hydroxide solution, tetraethoxysilane and ethanol to obtain a mixed solution B;
c. b, performing constant-temperature water bath heating treatment on the mixed liquor B obtained in the step B for 35min, continuously performing ultrasonic treatment in the period, and taking out the mixed liquor C after the ultrasonic treatment is completed;
d. and C, centrifugally washing the mixed liquor C obtained in the step C, and drying for 5 hours to obtain the product.
And c, mixing the carbon black, the quaternary ammonium salt cationic surfactant and the deionized water together in the step a according to the weight ratio of 1:0.8: 40.
And b, when the mixed solution A, the sodium hydroxide solution, the ethyl orthosilicate and the ethanol in the step b are mixed, the corresponding volume ratio is 5:25: 0.5: 2; the concentration of the sodium hydroxide solution is 0.01 mol/L.
The temperature of the constant-temperature water bath heating treatment in the step c is controlled to be 60 ℃; and the frequency of the ultrasonic wave is controlled to be 400kHz during ultrasonic treatment.
The step d of centrifugal washing specifically comprises the steps of firstly carrying out centrifugal treatment at the rotating speed of 4000 revolutions per minute, and then washing by alternately washing with ethanol and deionized water once; the temperature for drying is controlled to be 100 ℃ during the drying treatment.
This comparative example 1 is different from example 1 only in that the treatment operation of step e was omitted in the preparation of the enhanced silica, except that the process steps were the same.
Comparative example 2
A rubber with high elasticity and high stability is prepared from the following substances in parts by weight:
90 parts of natural rubber, 15 parts of synthetic rubber, 5 parts of SEBS (styrene-butadiene-styrene) rubber, 8 parts of ABS (acrylonitrile-butadiene-styrene) resin, 4 parts of vulcanizing agent, 3 parts of epoxidized soybean oil, 2 parts of anti-aging agent, 1 part of accelerator, 10 parts of enhanced white carbon black, 0.5 part of paraffin, 1 part of stabilizer, 2 parts of magnesium oxide and 1 part of zinc oxide; the vulcanizing agent is sulfur powder; the anti-aging agent is an anti-aging agent MB; the accelerator is a CBS accelerator; the stabilizer is a zinc barium stabilizer.
The preparation method of the reinforced white carbon black comprises the following specific steps:
a. uniformly blending carbon black, a quaternary ammonium salt cationic surfactant and deionized water to obtain a mixed solution A;
b. and b, mixing the mixed solution A obtained in the step a with polyether, concentrated sulfuric acid and a silane coupling agent, reacting for 1 hour, washing with deionized water, and drying.
And c, mixing the carbon black, the quaternary ammonium salt cationic surfactant and the deionized water together in the step a according to the weight ratio of 1:0.8: 40.
The weight ratio of the mixed solution A, the polyethylene glycol monomethyl ether, the concentrated sulfuric acid and the silane coupling agent in the step b is 5: 1: 0.2: 0.1; the reaction temperature is controlled to be 75 ℃ during the reaction treatment; the drying temperature is controlled to be 85 ℃ during the drying treatment.
Compared with the example 1, the comparative example 2 is different from the example 1 only in that the processing operations of the steps b to d are omitted in the preparation of the enhanced white carbon black, except that the steps of the other methods are the same.
Comparative example 3
A rubber with high elasticity and high stability is prepared from the following substances in parts by weight:
90 parts of natural rubber, 15 parts of synthetic rubber, 5 parts of SEBS (styrene-butadiene-styrene) rubber, 8 parts of ABS (acrylonitrile-butadiene-styrene) resin, 4 parts of vulcanizing agent, 3 parts of epoxidized soybean oil, 2 parts of anti-aging agent, 1 part of accelerator, 10 parts of white carbon black, 0.5 part of paraffin, 1 part of stabilizer, 2 parts of magnesium oxide and 1 part of zinc oxide; the vulcanizing agent is sulfur powder; the anti-aging agent is an anti-aging agent MB; the accelerator is a CBS accelerator; the stabilizer is a zinc barium stabilizer.
This comparative example 3 is different from example 1 only in that the reinforcing white carbon black component is replaced with an equal mass part of ordinary white carbon black, except that the other method steps are the same.
Control group
The application numbers are: 201410290288.0, the technical proposal of the embodiment 1 is selected in detail.
In order to further compare the effects of the invention, the rubber prepared correspondingly to the above example 1, comparative examples 1 to 3 and control group was subjected to a performance test, and the specific comparative data are shown in the following table 2:
TABLE 2
| Tensile Strength: (MPa） | Elongation at Break (%) | Compression set (%) | Rebound resilience (%) | |
| Example 1 | 27.8 | 460 | 18.0 | 69 |
| Comparative example 1 | 24.1 | 441 | 19.3 | 62 |
| Comparative example 2 | 21.3 | 422 | 20.4 | 59 |
| Comparative example 3 | 18.9 | 400 | 21.6 | 56 |
| Control group | 18.4 | 385 | 22.0 | 53 |
Note: the tensile strength described in Table 1 above was tested with reference to GB/T528-1998; the elongation at break is detected by reference to GB/T528-1998; the compression set rate is detected by referring to GB/T1683-84; the resilience is detected by referring to GB/T1681-1991.
As is apparent from the above tables 1 and 2, the rubber of the present invention has significantly improved elasticity, strength and other qualities, the use stability of the rubber is significantly enhanced, the problem that the addition performance of the common white carbon black is not improved better is solved, and a new technical idea is provided for the optimization of the existing rubber.
Claims (10)
1. The rubber with high elasticity and high stability is characterized by being prepared from the following substances in parts by weight:
90-100 parts of natural rubber, 15-20 parts of synthetic rubber, 5-10 parts of SEBS (styrene-butadiene-styrene) rubber, 8-12 parts of ABS (acrylonitrile-butadiene-styrene) resin, 4-8 parts of vulcanizing agent, 3-6 parts of epoxidized soybean oil, 2-4 parts of anti-aging agent, 1-3 parts of accelerator, 10-14 parts of reinforcing white carbon black, 0.5-1 part of paraffin, 1-2 parts of stabilizer, 2-3 parts of magnesium oxide and 1-2 parts of zinc oxide.
2. The rubber with high elasticity and high stability as claimed in claim 1, wherein the vulcanizing agent is any one of sulfur powder, zinc oxide and tert-butyl phenol formaldehyde resin; the anti-aging agent is any one of an anti-aging agent MB, an anti-aging agent DNP and an anti-aging agent NBC.
3. The rubber with high elasticity and high stability as claimed in claim 1, wherein the accelerator is any one of CBS accelerator, TBBS accelerator and DZ accelerator; the stabilizer is a zinc barium stabilizer.
4. The rubber with high elasticity and high stability as claimed in claim 1, wherein the preparation method of the reinforced white carbon black comprises the following specific steps:
a. uniformly blending carbon black, a quaternary ammonium salt cationic surfactant and deionized water to obtain a mixed solution A;
b. b, uniformly blending the mixed solution A obtained in the step a with a sodium hydroxide solution, tetraethoxysilane and ethanol to obtain a mixed solution B;
c. b, performing constant-temperature water bath heating treatment on the mixed liquid B obtained in the step B for 35-45 min, continuously performing ultrasonic treatment in the period, and taking out the mixed liquid B after the ultrasonic treatment is completed to obtain a mixed liquid C;
d. c, centrifugally washing the mixed liquid C obtained in the step C, and drying for 5-7 hours to obtain a mixture D;
e. and D, blending and reacting the mixture D obtained in the step D with polyether, concentrated sulfuric acid and a silane coupling agent for 1-1.5 hours, washing with deionized water, and drying.
5. The rubber with high elasticity and high stability as claimed in claim 4, wherein the weight ratio of the carbon black, the quaternary ammonium salt cationic surfactant and the deionized water in the step a is 1: 0.8-1: 40-45.
6. The rubber with high elasticity and high stability as claimed in claim 4, wherein the volume ratio of the mixed solution A, the sodium hydroxide solution, the tetraethoxysilane and the ethanol in the step b is 5: 25-30: 0.5-1: 2-3; the concentration of the sodium hydroxide solution is 0.01-0.02 mol/L.
7. The rubber with high elasticity and high stability as claimed in claim 4, wherein the temperature of the thermostatic waterbath heating treatment in the step c is controlled to be 60-65 ℃; and controlling the frequency of the ultrasonic wave to be 400-500 kHz during ultrasonic treatment.
8. The rubber with high elasticity and high stability as claimed in claim 4, wherein the centrifugal washing in the step d is specifically that the centrifugal treatment is carried out at a rotating speed of 4000-4500 rpm, and then the washing is carried out by alternately washing with ethanol and deionized water; and the temperature for controlling drying during drying treatment is 100-105 ℃.
9. The rubber with high elasticity and high stability as claimed in claim 4, wherein the weight ratio of the mixture D, the polyether, the concentrated sulfuric acid and the silane coupling agent in the step e is 5-6: 1-1.5: 0.2-0.4: 0.1 to 0.3; the reaction temperature is controlled to be 75-80 ℃ during the reaction treatment; and during drying treatment, the drying temperature is controlled to be 85-90 ℃.
10. The rubber with high elasticity and high stability as claimed in claim 9, wherein the polyether is polyethylene glycol monomethyl ether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010254202.4A CN111234330A (en) | 2020-04-02 | 2020-04-02 | High-elasticity and high-stability rubber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010254202.4A CN111234330A (en) | 2020-04-02 | 2020-04-02 | High-elasticity and high-stability rubber |
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| CN111234330A true CN111234330A (en) | 2020-06-05 |
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| CN202010254202.4A Withdrawn CN111234330A (en) | 2020-04-02 | 2020-04-02 | High-elasticity and high-stability rubber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112430355A (en) * | 2020-10-29 | 2021-03-02 | 王祥娟 | High-quality elastic rubber and preparation method thereof |
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2020
- 2020-04-02 CN CN202010254202.4A patent/CN111234330A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112430355A (en) * | 2020-10-29 | 2021-03-02 | 王祥娟 | High-quality elastic rubber and preparation method thereof |
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